CBSE Class 12 Biology Most Repeated Board Questions: Biology is a very important subject for CBSE Class 12 students, especially for those preparing for the Board Exam 2025-26. The CBSE Class 12 Biology Most Repeated Board Questions are extremely helpful for smart and focused exam preparation. These questions have been asked many times in previous board exams, which shows their importance and high probability of being asked again. Practicing CBSE Class 12 Biology Chapter-wise Board Questions allows students to concentrate on the most important topics of the syllabus. It also gives a clear idea of the pattern and type of questions generally asked in the exam. By solving CBSE Class 12 Biology Most Repeated Board Questions, students can improve their writing speed, accuracy, and presentation skills. It helps them manage their time better during the exam. These questions also build confidence as students feel more prepared and reduce exam stress. Overall, practicing the most repeated questions is one of the smartest ways to revise effectively and score higher marks in Biology.
Also read,
CBSE Class 12 Biology Exam Pattern 2025
Importance of Practicing CBSE Class 12 Biology Most Repeated Questions
Class 12th Board exams are an important milestone in a student’s academic journey, and achieving a high score requires a well-planned strategy. One of the most effective ways to excel is by practising CBSE Class 12 Biology most Repeated Questions from previous years. These Class 12th Biology frequently asked questions provide valuable insights into important topics, marking schemes, and frequently tested concepts..
- It helps students understand the question format and exam structure.
- Highlights frequently asked topics, allowing students to focus on key concepts.
- Practicing these questions enhances problem-solving skills and boosts confidence.
- Students learn how much time to spend on short and long-answer questions.
- Solving past year questions improves efficiency during the exam.
- Familiarity with Class 12 Biology frequently asked questions reduces exam fear and stress.
Also read,
CBSE Class 12 Biology Previous Year Question Paper
CBSE Class 12 Biology Chapter-wise Most Repeated Questions in Board Exam
Below is a detailed breakdown of the most repeated questions from each chapter of the Class 12 Biology syllabus. These questions have appeared many times in previous board exams, which makes them very important for revision. By focusing on these, students can identify high-weightage topics and practice the type of questions that are more likely to be asked again. This focused preparation not only saves time but also boosts confidence and improves overall performance in the Biology exam.
CBSE Class 12 Sexual Reproduction in Flowering Plants Most Repeated Questions
CBSE Class 12 Human Reproduction Most Repeated Questions
CBSE Class 12 Reproductive Health Most Repeated Questions
CBSE Class 12 Principles of Inheritance and Variation Most Repeated Questions
CBSE Class 12 Molecular Basis of Inheritance Most Repeated Questions
CBSE Class 12 Evolution Most Repeated Questions
CBSE Class 12 Human Health and Disease Most Repeated Questions
CBSE Class 12 Microbes in Human Welfare Most Repeated Questions
CBSE Class 12 Biotechnology: Principles and Processes Most Repeated Questions
CBSE Class 12 Biotechnology and its Applications Most Repeated Questions
CBSE Class 12 Organisms and Populations Most Repeated Questions
CBSE Class 12 Ecosystem Most Repeated Questions
CBSE Class 12 Biodiversity and Conservation Most Repeated Questions
CBSE Class 12 Biology Syllabus 2025-26
The Central Board of Secondary Education (CBSE) has released the Biology Syllabus for Class 12 Science streams for the academic year 2025-26. This Biology Syllabus outlines the course structure, chapters, and topics that students will need to study in the Biology. The CBSE Class 12 Biology syllabus covers a wide range of topics including Reproduction, Genetics and Evolution, Human Health and Diseases, Biotechnology and its Applications and Ecology and Environment. It is divided into units with specific weightage, helping students plan their Board Exam preparation effectively. The unite-wise chapters and weightage is provided below :
| Unit | Chapter | Marks |
|---|---|---|
| Reproduction | Sexual Reproduction in Flowering Plants | 16 |
| Human Reproduction | ||
| Reproductive Health | ||
| Genetics and Evolution | Principles of Inheritance and Variation | 20 |
| Molecular Basis of Inheritance | ||
| Evolution | ||
| Biology and Human Welfare | Human Health and Diseases | 12 |
| Microbes in Human Welfare | ||
| Biotechnology and its Applications | Biotechnology - Principles and Processes | 12 |
| Biotechnology and its Applications | ||
| Ecology and Environment | Organisms and Populations | 10 |
| Ecosystem | ||
| Biodiversity and its Conservation | ||
| Total | 70 | |
Check the latest and detailed CBSE Class 12 Biology Syllabus 2025-26; Check Latest Unit-wise Weightage, Download PDF.
CBSE Class 12 Biology Exam Pattern 2025-26
CBSE has released the exam pattern and marking scheme for the 2025-26 academic year. Based on the official question paper design shared on the official website, the board will follow the same exam pattern and marking scheme as in 2024-25. The CBSE Class 12 Biology board exam for 2024-25 consisted of a theory paper of 70 marks and Practical of 30 marks. The question paper was divided into five different sections:
| Section | Question Type | Number of Questions | Marks |
|---|---|---|---|
| A | Multiple Choice Questions & Assertion and Reason Questions (1 mark) | 16 | 16 |
| B | Very Short Answer (2 mark) | 5 | 10 |
| C | Short Answer (3 marks) | 7 | 21 |
| D | Case Study-Based Questions (4 marks) | 2 | 8 |
| E | Long Answer (5 marks) | 3 | 15 |
| Total | 33 | 70 | |
Check the latest and detailed CBES Class 12th Biology Exam Pattern 2025-26 with Marking Scheme.